Electronics Forum / Electrical Engineering / August 2006

I need to manufacture an extension cord for a travel trailer to power the AC
and refrigerator when staging the unit before trips.  Ideally I would like
to be able to power the trailer to the full 30A load potential.
What is the minimum gauge of wire that should be utilize to ...

I recently had a sub panel installed with a couple of extra 20amp
breakers available for expansion.  I have 2 240 volt circuits that run
through the shop; did not think to add extra 120 volt line at the time.
Is there some way to fashion an adapter that uses a 240 volt plug and

I'm upgrading the electrical service in my Minneapolis home from 60 amp
to 200 amp.  The service entrance, from weatherhead to the main panel,
is installed.  The next step is grounding the system.  The 2005 NEC is
unavailable in my library and I can't find a Minnesota Code resource

I have a 440 volt, 3 phase, induction motor, from a large marine
windlass, winch application. This motor has variable speed capability,
and the rotor is wound with 3 slip rings. When I first seen it, I
thought it would be easy to make into a genset, as it had lots of

Here is the problem
I have C&G 236 pt1, pt2, ptC (1&2) & degree in EE.
I am the NICEIC pdh & qs for the company I work for.
I am now about to rewire my mates house ( after work )

I hope this is the right place to ask this question...
I'm not an electrician, but am pretty knowledgable. I'm working on a
mobile video unit (creating one), and we are getting some pretty noisy
AC power from where we take our electrical feed. All of our cameras

I am asking this question for my friend. He is going to do his MSEE in
Analog/Digital ASIC at the Lund University,Sweden. He wants to know
about the future prospects in this field
P.S: He is an Indian and will be on a limited period(prob 2yr) student

I have been having difficulty obtaining a glass fuse 5mmx20mm for a US
DVD player I own. It is rated at 2amps and 125volts. I can only seem to
find this particular size of fuse in 2amp 250volt. Can I use this
safely? Why is ther a voltage rating as well as amperes? Thanks in

He is a question I've been pondering over for  a while.
Consider connecting a 3PH 200V 400Hz 60KVA aircraft power unit to a load
bank for testing. The inputs to the load bank is 3ph +N (no earth wire,
Inputs to aircraft do not have an earth)

are you applying the standard  and how are you doing it?
Ed

Realisation of the holy grail of electrical generatation that will run on
nothing more than rainwater falling on the roof enters a new and critical
phase as reported in the Press Release section of http//www.egaspower.com

are you applying the standard  andhow are you doing it?
Ed

Hey all :)
I have a stepper motor here off of what I am told was a coke machine. The
person offering me the motor suggests it is possibly a 120V motor but
looking at other motors in the range I suspect different.

We have an MCC that we are having problems with a number of relay coils
failing - eight failures in the last week.
The relays that are failing are the 4 Pole 3 Amp 14 Pin plug in relays. Coil
voltages of the failing relays are 110 VAC and 24 VDC. The coils are showing

I have a 17 inch flat panel Envsion monitor. When powered up, it works
fine, then after about 1 second the display is so dim, it's almost off.
Has anyone seen this problem before???
Thanks